Definitions for "MAINFRAME COMPUTER"
A large digital computer, normally able to process and store more data than a minicomputer and far more than a microcomputer, designed to do so faster than a minicomputer and much faster than a microcomputer, and often serving as the center of a system with many users. Also called a mainframe. See also COMPUTER, MICROCOMPUTER, MINICOMPUTER.
large, high-capability computer designed for multiple users and requiring special personnel to operate and maintain it.
A multiuser computer designed to meet the computing needs of a large corporation.